#include <stdio.h>
#define HUNTHOU 10000
typedef struct node {
    int data;
    struct node *next;
}//lekai
NODE;
NODE*insert_after (u,num)
NODE*u;
int num ;
{
    NODE*v;
    v = (NODE*)malloc(sizeof(NODE));
    v->data=num;
    u->next=v;
    return(v);
}
NODE*addint(p,q)
NODE*p,*q;
{
    NODE  *pp,*qq,*r,*s,*t;
    int total,number,carry;
    pp=p->next;qq=q->next;
    s=(NODE*)malloc(sizeof(NODE));
    s->data=-1;
    t=s;carry=0;
    while(pp->data!=-1&&qq->data!=-1)
    {
        total=pp->data+qq->data+carry;
        number=total%HUNTHOU;
        carry=total/HUNTHOU;
        t=insert_after(t,number);
        pp=pp->next;
        qq=qq->next;
    }
    r=(pp->data!=-1)?pp:qq;
    while(r->data!=-1)
    {
        total=r->data+carry;
        number=total%HUNTHOU;
        carry=total/HUNTHOU;
        t=insert_after(t,number);
        r=r->next;
    }
    if(carry)t=insert_after(t,1);
    t->next=s;
    return(s);
}
NODE*inputint(void)
{
    NODE*s,*ps,*qs;
    struct number 
    {
        int num;
        struct nunmber*np;
    }
    *p,*q;
    int i,j,k;
    long sum;
    char c;
    p=NULL;
    while((c=getchar())!='\n')
    if(c>='0'&&c<='9')
    {
        q=(struct number *)malloc (sizeof(struct number));
        q->num=c-'0';
        q->np=p;
        p=q;
    }
    s=(NODE*)malloc(sizeof(NODE));
    s->data=-1;
    ps=s;
    while(p!=NULL)
    {
        sum=0;i=0;k=1;
        while (i<4&&p!=NULL)
        {
            sum=sum+k*(p->num);
            i++;p=p->np;
            k=k*10;        
        }
        qs=(NODE*)malloc(sizeof(NODE));
        qs->data=sum;
        ps->next=qs;
        ps=qs;
    }
    ps->next=s;
    return(s);
}
printf(s)
NODE*s;
{
    if (s->next->data!=-1)
    {
        printint(s->next);
        if(s->next->next->data==-1)
        printf("%d",s->next->data);
        else{
            int i,k=HUNTHOU;
            for(i=1;i<4;i++,k/=10)
            putchar('0'+s->next->data%(k)/(k/10));
            
        }
    }
}
    main()
    {
        NODE *s1,*s2,*s;
        NODE *inputint(),*addint(),*insert_after();
        s1=INputint();
        s2=inputint();
        printf("S1=");printint(s1);putchar('\n');
        printf("S2=");printint(s2);putchar("\n");
        s=addint(s1,s2);
        printf("S1+S2=");printint(s);putchar('\n');
    }
